baber/WOPTO huggingface dataset:
Patent GB-943327-A (GB)
Title: Current stabilised dc supply arrangement
IPC: G05F3/18
Filed: 1962-07-20
Abstract: 943,327. Automatic current regulation. STANDARD TELEPHONES & CABLES Ltd. July 20,1962 [July 20, 1961], No. 28058/62. Heading G3R. [Also in Division H2] In a direct current stabilizer of the series transistor type, the emitter-collector path of the transistor is bridged by a resistor through which at least part of the load current flows should a fault occur, e.g. on short circuit, whereby the transistor is protected against overload. As shown, the current from a supply 1 to a load 6 is maintained constant in known manner by a circuit comprising a series transistor 5, an emitter resistor 2, a Zener diode 3 and a resistor 4. A resistor 7 shunts the emitter-collector path of the transistor 5; this resistor is so proportioned that it carries only a small part of the load current under normal operation, but the full load current under short circuit conditions, whereby the transistor 5 is protected. The resistor 7 may be of the ohmic, temperature-responsive, or voltageresponsive type.
Patent GB-841096-A (GB)
Title: Magnetic endless conveyor
IPC: B65G21/20
Filed: 1958-09-02
Abstract: 841,096. Magnetic endless conveyers. BUCCICONI ENGINEERING CO. Inc. Sept. 2, 1958 [June 13, 1958], No. 28116/58. Class 78 (1). An endless conveyer which holds and conveys metal sheets magnetically has two endless belts 26 running over rollers 28 mounted on a housing 16 fixed in stationary framework 10, 11, and between each pair of rollers is disposed an electromagnet 36 energized by coil 35. Each magnet 36 has an extension 39. The bottoms of extensions 39 and of housing 16 are tapered, as shown, to guide the tapered edges of the belts 26.
Patent GB-160873-A (GB)
Title: Improvements in or relating to apparatus for controlling the flow or pressure of fluids
IPC: G01F1/34
Filed: 1919-11-13
Abstract: 160,873. lonides, A. C. Nov. 13, 1919. Pressure-regulating valves.-A valve device for maintaining a constant pressure relationship between two fluids comprises two chambers each provided with a double beat valve actuated by a displacer or float partly immersed in a single U- tube connected to the two chambers. Each double-beat valve is suspended by a flexible member from arcs d' formed on levers d having second arcs d<2> from which actuating members g are suspended. The actuating-members are made of a material having a higher specific gravity than the liquid in which they are immersed and operate with easy clearance in the limbs f<1> of the U-tube. According to the Provisional Specification, the apparatus may be modified for use as a pressure gauge, or meter.
Patent GB-339379-A (GB)
Title: Improvements in cistern syphons
IPC: E03D1/06
Filed: 1929-09-18
Abstract: 339,379. Fourness Manufacturing Co., Ltd., and Martin, J. Sept. 18, 1929. Siphon - discharge water-waste preventers. -The vent pipe d of a siphon is cast in one with a leg thereof, preferably the shorter, a, which is of lead and may be cast in one with the cylinder a<1>, while the bend, which is burnt on to the legs has a substantially flat upper wall c. This wall is flat over the siphon legs but inclined over the vent pipe, which may also be cast in one with a band or collar b<1> fitting the leg b, which is usually of brass. The plunger rod may pass through a slot c, which is closed by a plate sliding on the rod. while a bracket f may also be cast integrally with the leg a.
Patent GB-1500665-A (GB)
Title: Process of manufacturing wrought-iron lattices
IPC: E04C5/16
Filed: 1976-07-07
Abstract: 1500665 Welding by pressure; making wrought iron lattices A HULEK 7 July 1976 28290/76 Headings B3R and B3A In a method of making wrought iron lattices, pre-shaped wrought iron rods 2, e.g. of round or polygonal cross-section, are placed beside one another in a lattice array in which a plurality of node-forming portions 3 of adjacent rods are disposed close to each other at a plurality of nodes 4, the node-forming portions 3 of each node are inserted into a U-shaped metal strip 6 having one or more inwardly protruding longitudinal ribs 7, each strip 6 is joined to said inserted node-forming portions by projection welding, e.g. using flat electrodes 8, Fig. 4, the rib(s) providing the projection(s), and finally the strips are closed up, e.g. by forming tools 9, Fig. 5, to form clips embracing the node-forming portions. All nodes of a row or group may be subjected at the same time to the welding operation and then to the strip closing operation. Two lattice rods may form a corner joint, and three or more rods, side by side, may be joined at a single node.
Patent GB-880291-A (GB)
Title: Improvements in or relating to bags or sacks
IPC: B65D33/06
Filed: 1958-09-03
Abstract: 880,291. Bags or sacks with handles. ESSENER STEINKOHLENBERGWERKE A. G., and ERNST, W. Sept. 3, 1958 [Sept. 6, 1957], No. 28354/58. Class 133. A cross-bottom bag 14 made e.g. of paper is closed at its bottom end by a seam 17 and at its top end by an integral portion 15 having a handle 16 formed by the wedge-shaped tucks of the closure reinforced at the edges. During manufacture, incisions 19 are made in tube end 18, the sides being then folded together and joined at the overlap 20 by adhesive ; then the flaps 21 thus formed are folded together so that tabs 22 formed by the incisions overlie one another and are joined to make the handle. This has glued thereover a reinforcement 23 having slits 24 which enable tabs 25 to be folded around the tabs 22. Alternatively the reinforcement has two incisions on each side, or no incisions at all, the outer portions of the longer sides being bent inwardly along parallel lines and slide on top of the tabs 22. The bag is filled through the end 17 before seaming.
Patent GB-175332-A (GB)
Title: Improvements in or connected with navigational apparatus
IPC: G01S1/02
Filed: 1920-10-07
Abstract: 175,332. Morris, A. D. Warrington-, Cusins, A. G. T., Tucker, W. S., Paris, E. T., and Robinson, J. Oct. 7, 1920. Signalling proximity of land etc; ship's course signals; foghorn, whistle, reed, and siren signals; locating sounds. -A sound producer and director for use in navigation is adapted to transmit a note of distinctive pitch or quality for different directions. A siren, whistle, or like producer 8, Fig. 1, and a reflector 9 are mounted on a shaft 12 and rotated together by a motor 11. The pitch of the note is varied with the direction of transmission in a constant relation by a control shaft 26 geared to a cog-wheel 17 mounted' on the shaft 12. The siren is fed from a compressedair source 14 through a port 15, the hollow shaft 12 and a tube 16. An observer by noting the pitch of the note of maximum intensity can determine the bearing of the transmitting station, and by taking observations from two known stations can plot his position. In a modified transmitting apparatus an electric siren is used, the pitch of the note being varied by causing the driving-motor 11 to vary a resistance included in the current supply circuit of the siren. According to another modification a stationary spherical reflector is used, a rotating beam being produc d by moving the sound producer in a path coinciding with the acoustic focus of the reflector. The note may change continuously round the compass, or intermittently on separated compass bearings of the beam, or intermittently on continuous or separated arcs. In another method of obtaining the bearing of a transmitting station, the beam is arranged to rotate at a definite speed and when it is projected in a predetermined direction, say North, a basic reference signal is also transmitted in all or various directions. The pitch of the rotating beam may vary or remain constant. An observer may determine his bearing by noting the time interval between the basic signal and the maximum intensity of the rotating beam. A method of navigating a fairway is described in which three stations W, X, Y, each transmitting a sound beam of fixed pitch in one direction, are located on one bank, while another station Z transmitting a number of fixed beams in various directions is located on the other bank. A navigator can plot his course from point to point by noting the intersections 35, 36, 37 of beams of known pitch and bearing. The transmitted note may in all arrangements be of inaudible frequency, known detecting means being provided at the receiving stations. The Provisional Specification describes an arrangement for transmitting different pre-arranged code signals for different azimuthal arcs. This arrangement may be used on ships for preventing collision, the apparatus being arranged to transmit the letter A, say from 0‹ to 10‹ starboard, B from 10‹ to 20‹ starboard, and so on.
Patent GB-786310-A (GB)
Title: A process for the preparation of zinc and cadmium selenides and tellurides
IPC: C01B19/00
Filed: 1955-10-05
Abstract: Zinc, cadmium or zinc-cadmium selenide or telluride is prepared by reacting an aluminium selenide or telluride containing an excess of aluminium over the stoichiometric amount with aqueous ammonia, removing the insoluble metal and hydroxide, and mixing with the solution a zinc and/or cadmium salt capable of forming an ammonia complex.  The process is carried out in a non-oxidizing atmosphere, e.g. of nitrogen, neon, argon, krypton, xenon, helium or hydrogen. The preferred proportion of aluminium in the selenide or telluride is 4-7 gm. atoms per 3 gm. atoms of selenum or tellurium: an excess of at least 25 per cent, e.g. 300 per cent or more of the theoretically necessary amount of ammonia (for production of ammonium selenide or telluride) gives improved results: and the mixture of aluminium selenide or telluride with aq. ammonia is preferably heated to 50-60 DEG  C.  Suitable complexforming salts are chlorides, bromides, iodides, sulphates, nitrates and acetates.  Examples describe the production of zinc selenide containing 2.5 per cent of cadmium selenide from a mixture of the acetates, and zinc telluride from zinc acetate; in the latter case ice is used in the first reaction to maintain a temperature of 30-40 DEG  C.
Patent GB-1429603-A (GB)
Title: Sintering platn for producing sinter from iron ore
IPC: F27B21/10
Filed: 1974-06-26
Abstract: 1429603 Sintering apparatus for iron ore METALLGESELLSCHAFT AG 26 June 1974 [2 July 1973] 28451/74 Heading C1A [Also in Divisions F3-F4] Iron ore sintering apparatus comprises a travelling grate 2 with a sintering section 3 &c. cooling section 4, air ignition device (not shown) in front of section 3, feeders 6 and 7 for charging grate protective material and charge material, wind boxes 5a and 5b below the grate connected to dust collecting plant and beyond the grate arranged in superposed fashion a grate and crusher 18, 19, a bin 20, a screen 32, a roll crusher 31, screens 22 and 28 and discharge belt conveyers 23, 24, 29 and 30. In a modification (Fig. 2) the screen 32 and roll crusher 31 are omitted. Air from the cooling section 4 passes through barbs of separators 9a, 9b and 9c drawn by blowers 10a, 10b, fine grain material passing from containers 12b on to a conveyer 13. Similar material from containers 12a below the sintering section 3 also discharges on to conveyer 13, from which conveyer 14 recycles it. The screen 32 removes oversize particles (e.g. over 50 mm.) passing them to the roll crusher 31, while screen 22 passes top sized material (e.g. 25-50 mm.) to discharge conveyer 23, medium sized material (e.g. 15-25 mm.) to conveyer 24 for use as grate protective material and the remainder to screen 28. The latter passes lower sized material (e.g. 0-5 mm.) to conveyer 29 as return fines and larger material (e.g. 5-15 mm.) to conveyer 30 as sintered product. Two screening and communicating units may be disposed side-by-side and used alternately enabling one to be repaired if necessary without shutting down the plant. Storage hoppers (36, Fig. 4) may be disposed at the side of grate 2 associated with metering devices (37) and feed conveyers (38).
Patent GB-262083-A (GB)
Title: Improved arrangement for the composition of two variable electric currents of any wave form and frequency
IPC: H03D7/10
Filed: 1926-11-12
Abstract: 262,083. Soc. des Etablissements Ducretet. Nov. 27, 1925, [Convention date]. Thermionic heterodyne receivers; thermicnic modulating systems.-Four-electrode valves are used for the compounding of electric currents, and the resultant or output current is taken from the circuit of the inner grid or from that circuit and the plate circuit jointly. The system is shown in Fig. 7 applied to modulation in wireless transmission, and in Fig. 5 to heterodyne wireless reception. Referring to Fig. 5, the plate circuit and the circuit of the inner grid 3 are coupled by the coils 8, 9 so as to set up oscillations in the tuned circuit 7, 8. The aerial 25 is connected in the circuit of the outer grid 4. The compounded or beat current is taken from a primary coil 10 in the inner grid circuit and from a similar coil 14 in the plate circuit, the two secondary coils 11, 15 being connected in series to produce an additive or differential effect. The two primary coils 10, 14 are shunted by condensers 20, 24. Alternatively the two output coils 11, 15 may excite separate circuits. For radio telephony transmission, the coils 8, 9 are coupled as before to produce oscillations in the circuit 7, 8 and the microphonic modulation is applied to the circuit of the outer grid 4. The modulated oscillations are transferred to the aerial 26 by coupling it to a coil in the tuned grid circuit 7, 8, or by jointly coupling it to the coils connected respectively in the inner grid circuit and the plate circuit. The differential action of the two output currents may be utilized in duplex telephony for eliminating the effect of transmitted currents on the asociated receiver. The elimination of parasitic disturbances is referred to. Specification 246.434 is also referred to.
Patent GB-520936-A (GB)
Title: Improvements in supports for electric lighting fittings
IPC: F21V21/08
Filed: 1938-10-03
Abstract: 520,936. Lamp brackets. GENERAL ELECTRIC CO., Ltd., and DURRANT, D. W. Oct. 3, 1938, No. 28673. [Class 52 (v)] An electric lamp holder 10 is mounted on a preferably tubular arm 5 adjustably clamped to a bar 1 suspended from a picture rail 12 by a hooked end and spaced from the wall at its lower end by an ornamental buffer 4, which may be of synthetic plastic material. A pronged metal plate 2 is mounted inside the hook of the bar. The end of the tubular arm may be made solid and bifurcated to grip the edges of the bar 1 under the action of the clamping screw 9. The arm may be detached and replaced with the lamp in an inverted position. The suspension member may be formed by doubling a single round rod on itself, the arm being secured thereto by a clamping plate shaped to grip the two limbs. The arm may have knuckle joints in its length.
Patent GB-1314857-A (GB)
Title: Gripper assembly
Inventor: MOWRY H E
IPC: B41L21/02
Filed: 1970-06-18
Abstract: 1314857 Printing apparatus MILLER PRINTING MACHINERY CO 18 June 1970 [20 June 1969] 28779/72 Divided out of 1314856 Heading B6C A gripper apparatus, which in use is part of a cylinder of a printing press, comprises a gripper finger 80, solid with a member 78, which is rotatably mounted on a shaft 42, and biasedby a spring 96 which extends between a flange 84 on the member 78 and a flange 76 on a second member 74 which is non-rotatably mounted on the shaft 42. The spring 96 urges the finger 80 towards an abutment 82, causing the gripper constituted by the finger and abut- -ment to remain closed unless engagement of a cam follwed 60 with a cam surface 57, brought about by displacement of the shaft 42 in consequence of relative movement between a cam 26 and a cam follower 46, causes them to open.
Patent GB-1341260-A (GB)
Title: Piston rings
IPC: F16J9/28
Filed: 1971-06-21
Abstract: 1341260 Piston rings TRW Inc 21 June 1971 [29 June 1970] 29007/71 Heading F2T [Also in Divisions B4-B5] A piston ring for the second ring groove of an I.C. engine comprises an elastomeric plastics ring component 12 and a metal expansible ring component 11 having portions embedded in the plastics ring by a moulding process, the plastics ring having a peripheral sealing surface for riding on the cylinder wall. The expansible ring 11 is made from sheet steel with all the voids filled with plastics material such as P.T.F.E., chlorotrifluoroethylene, vinylidene fluoride, hexafluoropropylene, vinyl fluoride, nylon and silicone resins. Fig. 13, shows a piston ring in which the metal component bent from sheet material has segments 60 riding on the lower wall of the groove. Fig. 15, shows two metal rings 50 stacked together with their tabs 64 in nested relation and embracing a plastics ring component 71. The piston ring may be made by a moulding apparatus, Figs. 4 and 5 (not shown), in which the metal ring component (11) is fed through a moulding tunnel (35) by a toothed wheel (36) where it is filled with powdered or granular plastics material through the side of the tunnel by means of a screw-feeder, the plactics-packed ring being heated to mould or sinter the powder or granules. In Figs. 6, 7 and 8 (not shown), the inner surface (40) of the piston ring is covered with the plastics material during manufacture by enlarging the cross-section of the moulding tunnel at (42).
Patent GB-1045085-A (GB)
Title: Electromagnet
IPC: H01F7/14
Filed: 1963-07-23
Abstract: 1,045,085. Electromagnets. SODECO, SOC. DES COMPTEURS DE GENEVE. July 23, 1963 [Sept. 29, 1962], No. 29065/63. Heading HIP. An electromagnet has a rockable armature 1 which passes through the gap between yokes 2, 3 and is supported by yoke 3 and bridge piece 15 attached to yoke 2. Before cranking the armature transverse and longitudinal slits are provided so that the edge portions of the armature are not bent and provide co-operating surfaces for yoke 3 and bridge piece 15. The bridge piece is made of non-magnetic material and is mounted so that the clearance between it and the armature can be adjusted. The armature has an extension which co-operates with the load, e.g. an impulse counter, which is operated when winding 4 is energized and armature section 9 moves to lie flat on the yoke 3. In a modification, Figs. 4-7 (not shown), the armature comprises a flat plate with a recess between two tongues and the yoke member is cranked and cut. A bridge piece is secured to the armature to provide supporting faces on top of the yoke whilst the armature recess provides supporting faces beneath the yoke. A return blade spring may be provided between the yoke and armature. The co-operating support faces are bevelled in both embodiments.
Patent GB-243355-A (GB)
Title: Improvements in or relating to starters for an internal combustion engine
IPC: F02N15/04
Filed: 1925-05-22
Abstract: 243,355. Soc. Anon. pour l'Equipement Electrique des Vehicules. Nov. 18, 1924, [Convention date]. Turning-gear.-An electric starter is provided with means for starting by hand comprising a shaft 1 slidingly counected by keys 49 to the hollow armature shaft 30 of the starting motor, which does not move axially. The shaft 1 has pinion teeth 4 forming part of the transmission from the motor to the engine shaft 2, and also clutch teeth 19 brought by axial movement into engagement with teeth 18 on the engine shaft. A pin 34 in the shaft 1 is engaged by a starting- handle, and the shaft is normally held in the position shown by a spring 20. The planetary transmission gear between the shafts 1, 2 is described in Specification 239,809 and enables the motor to rotate the engine at a reduced speed when starting and afterwards to be driven as a generator at engine speed. Specification 237,541 also is referred to.
Patent GB-816981-A (GB)
Title: Improvements in or relating to bookshelves
IPC: A47B65/00
Filed: 1954-10-08
Abstract: 816,981. Bookshelves. RUBINSTEIN, S. J. Oct. 10, 1955 [Oct. 8, 1954], No. 29095/54. Class 52(1) Shelves for books are subdivided longitudinally into two or more parts C, D, E, F each holding a row of books between end cheeks C<SP>2</SP>, D<SP>2</SP>, E<SP>2</SP>, F<SP>2</SP>. To obtain access to the rear row or rows the front part is slid forwardly on bearers B, B<SP>1</SP> and raised or lowered, the back walls C<SP>1</SP>, E<SP>1</SP> moving vertically in the gap between the bearers and a front beading A<SP>4</SP>. Rear lugs C<SP>5</SP>, E<SP>5</SP> on the displaceable parts support them after withdrawal or alternatively folding legs can be provided.
Patent GB-957892-A (GB)
Title: Diaminocarboxylic acids and their derivatives having a protected ªÏ-amino group and process for the temporary protection of amino groups in diaminocarboxylic acids and their derivatives
IPC: C09B43/00
Filed: 1960-08-23
Abstract: The invention comprises:  (a) a -(o -t-butyloxy-carbonylaminoalkyl)-a -aminoacetic acids in which the a -amino group is unprotected or protected by a radical that can be split off by hydrogenation or hydrolysis with a weak acid, their esters, anhydrides, hydrazides, azides and copper complexes, and peptides containing residues of such acids; (b) L-lysyl-L-prolyl-L-valylglycine; (c) L-lysyl-L-lysyl-L-arginyl-L-arginyl-L-proline; (d) L-lysyl-L-lysyl-nitro-L-arginyl-nitro-L-arginyl-L-proline; (e) the preparation of compounds (a) by acylating the corresponding free o -amino compounds with t-butyloxycarbonyl azide and, if necessary and desired, decomposing a resulting copper complex; (f) the manufacture of peptides by condensing an a -(o -t-butyloxycarbonylamino-alkyl)-a -aminoacetic acid, having its a -amino group protected by a radical removable by hydrogenolysis or by hydrolysis with a weak acid, with an aminoacid or peptide having a free a -amino group, or condensing an a -(o -t-butyl-oxycarbonylaminoalkyl-a -aminoacetic acid ester, having a free a -amino group, with an aminoacid or peptide having its a -amino group protected by a radical removable by hydrogenation or by hydrolysis with a weak acid, then, in either case, removing the a -amino protective group, and, if desired, removing the t-butoxycarbonyl radical by means of a dilute mineral acid or a gaseous hydrogen halide in an organic solvent.  The preparation of compounds (b), (c) and (d) by process (f) is described in detail. L-Proline t-butyl ester is prepared by agitating L-proline with liquid isobutylene and concentrated sulphuric acid in chloroform in a pressure flask, isolating the desired ester in the form of its hydrochloride and liberating the aminoacid ester by the action of potassium carbonate solution.
Patent GB-948323-A (GB)
Title: Improvements in or relating to wellhead equipment and remotely-controlled coupling systems for conduits
IPC: E21B43/013
Filed: 1960-08-23
Abstract: 948,323. Pipe joints. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Aug. 23, 1960 [Aug. 25, 1959], No. 29116/60. Heading F2G. An hydraulically actuated underwater wellhead pipeline coupling unit comprises first and second mating members 41, 40, Fig. 3, a sleeve 85 carried by a tubular member 61 so as to form an annular piston chamber 72 in which annular piston means 67 is telescopically extendible beyond the end of the tubular member 61 to engage the first member 41, sealing means 116 being provided, and a conduit 75 through which fluid under pressure can be applied selectively to the piston means to connect and disconnect the coupling. Fluid under pressure passes through conduits 75, 88 to move tandem pistons 67, 81 to the right until sealing rings 116 and 120 engage respectively the recess 74 and the outer surface of the first member 41. The end face of the first member 41 engages a valve 106, Fig. 4, to admit fluid via conduits 105, 108, 104, into chamber 102 to move a piston 91 to the left. To disengage the coupling pressure fluid is applied through conduits 56, 78, port 115, passageways 70, 114, 113 to move the piston 91 to the right and a locking head 101 out of engagement with dogs 93 so that a face 95 retracts the dog 93 into the position shown in Fig. 3. When the piston 91 is at the end of its travel, the conduit 110 is aligned with the conduit 111 and fluid from chamber 90 flows through conduits 110, 111, 112, 76 and port 77 into chamber 72 to move the piston 67 to the left. Specifications 924,904, 934,216 and 948,322 are referred to.